Here's how you might use the word "conditional" in a sentence:
* "The offer is conditional on your acceptance of the terms." This means the offer will only be valid if you agree to the conditions.
* "Our plans for the trip are conditional on the weather." This means our plans depend on the weather and might change if the weather is bad.
* "The conditional tense is used to express uncertainty or possibility." This refers to a grammatical concept.
If you were trying to use a different word, please provide more context so I can help you find the correct word!